Masses are always quoted as rest masses, otherwise it's not a constant but a variable which depends on your point of view. Nevertheless, the photon's mass is ALWAYS zero for the same reason that's velocity is always c. k*0 = 0 in most mathematical frameworks.
Excuse me but (as far as we know) they don't. Look here if you want proof.
The difference between having mass and not having mass is vast. Unless you want special versions of einstein's equations for photons, you have to conclude that they are massless (to the limits we can measure).
They're not contradictory. He's saying that science can't prove a theory in both sentences. For example Quantum Electro Dynamics is tested to an almost unimaginable level of accuracy, but tomorrow morning someone could discover something which QED cannot explain.
All science can do is to quantify how much we trust a theory.
Ok - original post talks about 15g acceleration. The we get this:
"You threw your card at 4 times the speed of sound? I CALL BULLSHIT! You FECKING liar!"
I understand calculus very well thanks. I'm a professional physicist. Can you explain to me how 15g implies 4 times the speed of sound? THAT was the point I was making. Sorry if I wasn't clearer but I really don't understand what you thought I was saying!
Secondly, if the original UN resolution was enough, why did the US/UK seek a second? Why did Kofi Annan specifically say it wasn't enough? Plenty of lawyers were unconvinced... (I've done a quick google but can't find a very good link, but this at least mentions the legal controversy that I remember from the time).
Now I'm not saying that the UN works well - it doesn't. It needs reform. I think the concept of the security council veto is abhorrent. But the way to do this is not to ignore it completely if it disagrees with you.
The US/UK claimed that Iraq had large quantities of WMDs which were an immediate threat to the west. This appear to have been at best an exaggeration and at worst a lie. THAT is the key point. You may not have seen, but Blair is now in serious trouble at home and it has been suggested he lied to the House of Commons.
Regarding the rest of your points: do you you really want to live in a democracy or not? Of COURSE places like N. Korea lie about the US. So what? One of the downsides of free-speech is that people might say stuff you disagree with... what is needed is a true democracy of nations and a true world court to enforce internation law. The US has many more allies than enemies so I don't see what it has to fear from helping to create such an institution, especially since the US would be strongly represented on it. Syria, Libya and Cuba don't have seats on the security council.
And finally, yes I know we've had wild west justice for ages but we have been slowly been improving. You might critise the UN but 70 years ago there was no international agency to feed the starving and no notion of an international court (however flawed). It seemed we were gradually progressing towards a more civilised era of international relations. I would argue that the UK/US action has put this back by decades, causing more long-term harm to world peace than they have solved.
As far as I know (correct me if I'm wrong) the US has found NOTHING conclusive. And the point you're wilfully missing is that the US and the UK *claimed to KNOW that Iraq have WMD*. They shouldn't NEED 12 bloody years to find them if they actually had credible intelligence. And if they didn't, what the flying fuck were they doing breaking international law and invading another country against the express wishes of the security council, which wilst imperfect is the closest we have to a world court?
I'm sorry but you can't have it both ways: if the US and the UK "did the right thing"(tm) and knew for certain that there were WMDs and should be able to find evidence of them easily. If on the other hand they concocted "proof" from vague rumours etc, and lied to the world (as seems increasingly likely) then our leaders should at the very least be resigning. They certainly shouldn't be given 12 years to hunt for what they "knew" was there.
Understand, I completely agree that Saddam was an evil tyrant and should have been deposed, but there is an important distinction between a lynch mob doing what *it* thinks is right, and justice. I might get very frustrated at how long it takes to convict a murderer BUT this does NOT give me the right to take the law into my own hands.
Finally, you might complain that the UN and international law is meaningless - this is to a large extent true, but only thanks to the big powers. A good example is the War Crimes tribunal - the US would only support it if US soldiers were exempt. I'm sorry, but that is completely unacceptable.
If the US and the UK are really interested in world peace and justice, then they should be prepared to surrender some power to a higher body: a true international court. Until then, we are devolving to the "wild west" notion of justice, were roaming gangs of vigilanties impose their notion of justice by strength of arms.
Sure. In a year or so's time when we have another election I will. In the meantime, I'll carry on complaining about the actions that my government has taken in my name.
Actually I do. It's not exactly the most user-friendly program in the world, but instructions for Atlantis are here. It's java so pretty much anyone should be able to play with it - I'm using it under linux for example. I think event 3 is a black hole event (not the same one probably).
Grow up. What I said was completely reasonable: no evidence was presented. In fact my government resorted to plagarism and fraud to concoct some, which surely they would not have done unless it were necessary?
Of course you could say that they have evidence they couldn't reveal in case they comprimised their sources. Robin Cook would have seen it and he resigned over the war (search the BBC for his resignation speech - it's very impressive). Finally, if Iraq was such a threat, WHERE ARE THE WMDs now?
The obvious answer, and the one that I believe to be true, is that there were none. Given that this was the whole justification for the war, I think the whole setup stinks.
Ahem. Not sure I want to get involved in this slagfest, but WHAT threat? Are you SERIOUSLY claiming that iraq was a danger to the west? I saw no evidence of this before the war (the british government even had to doctor an old PhD thesis because of the lack of real proof), and more importantly I see none now.
This is cool! I've come to work today and found you all talking about us!
Many people have already pointed out that black holes are not going to destroy the earth, but I guess people might be interested in this, which is a simulation of what a black hole event might look like. It shows an end-on view of the the ATLAS detector (picture), with most of the noise and rubbish taken out.
The curved, coloured lines are tracks left by charged particles. The green ring is the electromagnetic calorimeter, whilst the red ring is the hadronic calorimeter. Calorimeters just measure energy - so the histograms radiating out show how much energy was deposited at each point. So by looking at the histograms you can get an idea of how energetic the track was. Hope that makes sense!
Incidentally, the picture is zoomed to show the interesting detail better. The detector is extremely large! Look here for a picture that shows people standing next to it... it's about 5 storeys high, and is in a cavern 100m underground which is about 13 storeys high. Oh, and I work on it...
I think you've completely missed his point - he's not saying that Halo is bad, more that it would have been much better on a PC (As was originally intended before MS stepped in)
I don't necessarily think that you ARE a troll, but you certainly aren't very bright. There is plenty of free software that isn't made by GNU. Furthermore, any software released under the GPL is released under identical terms to GNU software.
(and I actually found the info here) Personally I think that anything over 40 hours a week is fucked up. Of course, I probably work more than that myself but I do it because I enjoy my job. Most people don't.
And another thing... In both the matrix, and Terminator... what's so bad about humans being wiped out or machines taking over control of them?
You've just FAILED the turing test Agent Smith! Nice try, but it's pretty goddamn obvious to us REAL humans here "what's so bad about humans being wiped out"...
TELL ME WEAK PUNY HUMAN --- WOULD YOU RATHER BE EXTERMINATED OR NOT.
Er... Not? If that's okay?
Oh, and more seriously you seem to be suggesting that because humans fight and damage the eco-system, it'd be better to replace them with creations which would obliterate all life on earth. Nice. Gaia says thanks, but no thanks.
Tell you what, why don't you go and read about it? The previous poster was entirely right - Phoenix is a *separate* browser, based on mozilla (whose browser, or rather the codebase, is known as SeaMonkey).
Of course, you could have found it yourself with minimal effort - look at the first line of the Firebird/Phoenix webpage which says: "Mozilla's Firebird browser is a redesign of the Mozilla browser component, similar to Galeon, K-Meleon and Camino, but written using the XUL user interface language and designed to be cross-platform."
I agree that they probably won't put 4 controller ports in, but unlike you I don't think it's sensible or reasonable. After all, they're the only next gen console without 4 ports!
1. Lots of GC games support 4-players. The N64 was a fantastic party machine because of Goldeneye, MK64, DKRacing etc. I think you're very wrong here.
2. Yes, and I bought a multitap. And it's godawful - you can't leave it in because several games (like SSX) didn't work with it in, it leads to even more cables spread over the place. Oh, and mine doesn't work any more. It died after 1 year.
Provided that xbox2, gc2 etc. launch at the same time as the PS3 I will get one of them instead. So, whilst I may be in a minority, Sony are sure to lose some paying customers because of their determination to provide a console less fully-featured than the competition.
You've been able to get a remote for the PS2 for ages. I think they came out right after lauch. Go to amazon and search for "PS2 remote"
I doubt they'll put more than two controller ports though. They're moronic like that (and if the PS3 doesn't have >2, I for one will probably give it a miss)
I don't know how you thought you were going to be "on top" for a while! The PS2 has been out for ages (what, a couple of years?) and is the least powerful of the consoles* Look, you've had it for four months, the odds are high that this new one won't be out for ages, so really you're fine.
* so I'm told. I own a PS2 and am very happy with it. I don't own a GC or Xbox.
Slashdot Mirror
Masses are always quoted as rest masses, otherwise it's not a constant but a variable which depends on your point of view. Nevertheless, the photon's mass is ALWAYS zero for the same reason that's velocity is always c. k*0 = 0 in most mathematical frameworks.
The difference between having mass and not having mass is vast. Unless you want special versions of einstein's equations for photons, you have to conclude that they are massless (to the limits we can measure).
All science can do is to quantify how much we trust a theory.
*
at the new place hired me with a six-figure wage
My only regret was not doing it sooner - I'm already 24 years old
A whole 24 years old & on six figures? Man, you washed up old-timer....
(/me weeps bitterly)
My only regret was not doing it sooner - I'm already 24 years old
A whole 24 years old & on six figures? Man, you washed up old-timer....
(/me weeps bitterly)
"You threw your card at 4 times the speed of sound? I CALL BULLSHIT!
You FECKING liar!"
I understand calculus very well thanks. I'm a professional physicist. Can you explain to me how 15g implies 4 times the speed of sound? THAT was the point I was making. Sorry if I wasn't clearer but I really don't understand what you thought I was saying!
What has acceleration got to do with speed? Fool.
Secondly, if the original UN resolution was enough, why did the US/UK seek a second? Why did Kofi Annan specifically say it wasn't enough? Plenty of lawyers were unconvinced
Now I'm not saying that the UN works well - it doesn't. It needs reform. I think the concept of the security council veto is abhorrent. But the way to do this is not to ignore it completely if it disagrees with you.
The US/UK claimed that Iraq had large quantities of WMDs which were an immediate threat to the west. This appear to have been at best an exaggeration and at worst a lie. THAT is the key point. You may not have seen, but Blair is now in serious trouble at home and it has been suggested he lied to the House of Commons.
Regarding the rest of your points: do you you really want to live in a democracy or not? Of COURSE places like N. Korea lie about the US. So what? One of the downsides of free-speech is that people might say stuff you disagree with
And finally, yes I know we've had wild west justice for ages but we have been slowly been improving. You might critise the UN but 70 years ago there was no international agency to feed the starving and no notion of an international court (however flawed). It seemed we were gradually progressing towards a more civilised era of international relations. I would argue that the UK/US action has put this back by decades, causing more long-term harm to world peace than they have solved.
I'm sorry but you can't have it both ways: if the US and the UK "did the right thing"(tm) and knew for certain that there were WMDs and should be able to find evidence of them easily. If on the other hand they concocted "proof" from vague rumours etc, and lied to the world (as seems increasingly likely) then our leaders should at the very least be resigning. They certainly shouldn't be given 12 years to hunt for what they "knew" was there.
Understand, I completely agree that Saddam was an evil tyrant and should have been deposed, but there is an important distinction between a lynch mob doing what *it* thinks is right, and justice. I might get very frustrated at how long it takes to convict a murderer BUT this does NOT give me the right to take the law into my own hands.
Finally, you might complain that the UN and international law is meaningless - this is to a large extent true, but only thanks to the big powers. A good example is the War Crimes tribunal - the US would only support it if US soldiers were exempt. I'm sorry, but that is completely unacceptable.
If the US and the UK are really interested in world peace and justice, then they should be prepared to surrender some power to a higher body: a true international court. Until then, we are devolving to the "wild west" notion of justice, were roaming gangs of vigilanties impose their notion of justice by strength of arms.
Sure. In a year or so's time when we have another election I will. In the meantime, I'll carry on complaining about the actions that my government has taken in my name.
Have fun!
Of course you could say that they have evidence they couldn't reveal in case they comprimised their sources. Robin Cook would have seen it and he resigned over the war (search the BBC for his resignation speech - it's very impressive). Finally, if Iraq was such a threat, WHERE ARE THE WMDs now?
The obvious answer, and the one that I believe to be true, is that there were none. Given that this was the whole justification for the war, I think the whole setup stinks.
Ahem. Not sure I want to get involved in this slagfest, but WHAT threat? Are you SERIOUSLY claiming that iraq was a danger to the west? I saw no evidence of this before the war (the british government even had to doctor an old PhD thesis because of the lack of real proof), and more importantly I see none now.
Many people have already pointed out that black holes are not going to destroy the earth, but I guess people might be interested in this, which is a simulation of what a black hole event might look like. It shows an end-on view of the the ATLAS detector (picture), with most of the noise and rubbish taken out.
The curved, coloured lines are tracks left by charged particles. The green ring is the electromagnetic calorimeter, whilst the red ring is the hadronic calorimeter. Calorimeters just measure energy - so the histograms radiating out show how much energy was deposited at each point. So by looking at the histograms you can get an idea of how energetic the track was. Hope that makes sense!
Incidentally, the picture is zoomed to show the interesting detail better. The detector is extremely large! Look here for a picture that shows people standing next to it
It's two protons actually (sorry, but I'm sitting at CERN at the moment, working on this experiment so I'm allowed to be pedantic ;-)
I think you've completely missed his point - he's not saying that Halo is bad, more that it would have been much better on a PC (As was originally intended before MS stepped in)
In simple language - this is as free as gcc.
Just in case you were being serious ;-)
UK: 43.6
Greece: 40.8
Spain: 40.6
Portugal: 40.6
Austria: 40.2
Sweden: 40.1
Germany: 40.1
Ireland: 40
Luxembourg: 39.7
France: 39.6
Finland: 39.3
Netherlands: 39
Denmark : 38.9
Italy: 38.5
Belgium : 38.4
Source: Workplace Employee Relations Survey 1998
(and I actually found the info here)
Personally I think that anything over 40 hours a week is fucked up. Of course, I probably work more than that myself but I do it because I enjoy my job. Most people don't.
You've just FAILED the turing test Agent Smith! Nice try, but it's pretty goddamn obvious to us REAL humans here "what's so bad about humans being wiped out"
TELL ME WEAK PUNY HUMAN --- WOULD YOU RATHER BE EXTERMINATED OR NOT.
Er
Oh, and more seriously you seem to be suggesting that because humans fight and damage the eco-system, it'd be better to replace them with creations which would obliterate all life on earth. Nice. Gaia says thanks, but no thanks.
Of course, you could have found it yourself with minimal effort - look at the first line of the Firebird/Phoenix webpage which says: "Mozilla's Firebird browser is a redesign of the Mozilla browser component, similar to Galeon, K-Meleon and Camino, but written using the XUL user interface language and designed to be cross-platform."
Note the word re-design.
Am I missing something here?
Tsar (or Tzar) comes from Caesar too.
1. Lots of GC games support 4-players. The N64 was a fantastic party machine because of Goldeneye, MK64, DKRacing etc. I think you're very wrong here.
2. Yes, and I bought a multitap. And it's godawful - you can't leave it in because several games (like SSX) didn't work with it in, it leads to even more cables spread over the place. Oh, and mine doesn't work any more. It died after 1 year.
Provided that xbox2, gc2 etc. launch at the same time as the PS3 I will get one of them instead. So, whilst I may be in a minority, Sony are sure to lose some paying customers because of their determination to provide a console less fully-featured than the competition.
I doubt they'll put more than two controller ports though. They're moronic like that (and if the PS3 doesn't have >2, I for one will probably give it a miss)
* so I'm told. I own a PS2 and am very happy with it. I don't own a GC or Xbox.